Calculate the magnitude of 2 charges placed 10mm apart and repels each other with a force of 0.2N, if the permittivity of the medium is twice that of vacuum ​

Calculate the kinetic energy of earth due to its spinning about its axis. krot = j compare your answer with the kinetic energy of the orbital motion of earth's center of mass about the sun. assume earth to be a homogeneous sphere of mass 6.00 1024 kg and radius 6.40 106 m. the radius of earth's orbit is 1.50 1011 m.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

What sort of waves exhibit the doppler effect?